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Adjuvants & Formulations
Bimonthly magazine for agchem specialists (former Adjuvant Newsletter) | |
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Don't reply to this email newsletter address. Send your reponse or comments to: h.deruiter@surfaplus.com | |
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Spray drift due to bag break up and the remedy for it
Coarse
sprays are not a full guarantee against spray drift. Crosswind at boom
height can break up the large spray drops into driftable fines. The
American agricultural cooperative WinField United explicitly asks
attention to this hardly investigated phenomenon. Adjuvants & Formulation reviews what is already known and what is still unknown.
Bag fragmentation: the penultimate stage of the bag breakup of a droplet. Airflow is from left to right. Picture: Lars Opfer. | |
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Insight in developments of spray drop characterization methods
Drop
size measurements must reliably reflect the performance of drift
reduction agents. Research with various nozzles and spray solutions
shows that different measurement techniques can yield diverging results.
Recently, a new technique has been added to the wide array of measurement methods: digital inline holography. | |
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Wind and temperature and the risk of dicamba and 2,4-D injury
Dicamba
damage in soybean is once again widespread in the USA this year,
despite the required addition of a volatility reduction adjuvant to
low-volatile dicamba formulations. Damage caused by 2,4-D is expected to
increase the coming years. Weed specialists provide new insights into
atmospheric conditions that are conducive to dicamba and 2,4-D
off-target movement. Adjuvants & Formulations reports. | |
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News in brief
Clariant
has synthesized herbicidal fatty acid derivatives that can be used as
alternative to pelargonic acid. These novel herbicides can be sprayed
without adjuvants and are relatively easy to co-formulate. Adjuvants & Formulations presents the major findings of this work.
More news in this issue:
- New hypothesis for superspreading phenomenon
- Anionic-cationic surfactant synergism in microemulsions
- Effect of ethylene oxide group in the anionic–nonionic mixed surfactant system on microemulsion phase behaviour
- Antisurfactant behaviour of superspreader surfactant
- Xylem sap contains potent surfactants
- Structure simplification of natural products as approach in agrochemical discovery
- User-safe and efficient nanoherbicide
- Responses of 2,4-D resistant Brassica rapa biotype to various 2,4-D formulations and other auxinic herbicides
- Iron as safener to reduce topramezone injury to bermudagrass
- Eco-friendly carboxymethyl cellulose hydrogels filled with nanocellulose or nanoclays
- Self-spreading pesticides according to the Marangoni flow principle
- Seed treatment is under discussion
- Reflections on using pesticides – a global problem
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Patents in brief
Monsanto
(Bayer) seeks patent protection for concentrated 2,4-D and dicamba salt
solutions with a stable build-in oil-type drift reduction adjuvant.
These adjuvants are stabilised with selected emulsifiers. The drift
reduction adjuvants are effective at low concentrations, which is
critical in achieving stable emulsion and micro-emulsion formulations
with the adjuvant and auxinic herbicide.
Adjuvants & Formulations also reports about activities of other companies as well as universities, such as:
- Glufosinate plus PPO inhibitors
- Potassium increases burn down effect of water-soluble herbicides
- Overview of recent patent publications with brief summary
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Interested in the Adjuvants & Formulations magazine?
Adjuvants &
Formulations is a bimonthly digital magazine published by SURfaPLUS
Services. On our website you will find additional information about this
magazine, including information about subscriptions.
Adjuvants &
Formulations focuses on all companies, institutions and individuals
involved in the production, distribution, sale, use and registration of
adjuvants and formulations.
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